After Texas joined the United States in 1845, Mexico and the United States disputed whether Texas ended at the Nueces River or the Rio Grande. What conflict followed?

In 1845, the United States made Texas a state even though Mexico still claimed it. What cause of the US-Mexican War does this describe?

In 1845, President Polk sent John Slidell to Mexico, but Mexico refused to receive him. What goal did this failed mission show?

In early 1846, Polk ordered US troops into the land between the Nueces River and the Rio Grande that both countries claimed. Which general led them?

Polk's May 1846 war message said Mexico had "shed American blood upon the American soil." What immediate cause was he citing?

Use the U.S. map. Each shaded present-day state includes land the United States added in 1848. What acquisition was this?

Use the U.S. map. Each shaded present-day state includes land the United States gained from Mexico in 1848. In which of these states was gold discovered in 1848?

Use the U.S. map. Each shaded present-day state includes land gained from Mexico in 1848. Which shaded state lies east of California and west of Utah and became a state in 1864?

Use the U.S. map. Each shaded present-day state includes land gained from Mexico in 1848. Which shaded state includes the land around the Great Salt Lake where many Mormon Trail migrants settled?

Use the U.S. map. Each shaded present-day state includes land gained from Mexico in 1848. Which shaded state includes the upper Rio Grande and the Santa Fe region, a former Mexican province?

Mexico relinquished claims to Texas, recognized the Rio Grande boundary, and ceded a large western region in 1848. What treaty set these terms?

Under the Treaty of Guadalupe Hidalgo, how much did the United States agree to pay Mexico for the land it gained?

What war did the Treaty of Guadalupe Hidalgo end?

Article V of the Treaty of Guadalupe Hidalgo fixed the boundary beginning at the mouth of one river on the Gulf of Mexico. What river became the border?

The Treaty of Guadalupe Hidalgo dealt with Mexicans living in the lands Mexico gave up. What did the treaty say about their citizenship?

The Wilmot Proviso would have banned slavery in lands taken from Mexico, passed the House, and failed in the Senate. What division did this reveal?

California's request to enter the Union as a free state after the Gold Rush met fierce southern resistance. What sectional issue did it raise?

Congress admitted California as a free state and organized the New Mexico and Utah territories in one package of laws. What was this legislation called?

Debates over whether slavery would expand into the Mexican Cession made northern and southern lawmakers more hostile. What term names this growing split?

Some leaders, such as Lewis Cass, said settlers in each new western territory should vote to decide whether to allow slavery. What was this idea called?